Adobe reader annotations disappear
I have implemented adobe reader in my web app and I am facing a problem.
Users can add annotations, check the image below (annotations are First Name and Sign showing in the pdf with the red color):

When moving any of the annotations to another area, ALL annotations disappear.

I'm also unable to undo the action.
The implementation is done using this document as a reference: https://developer.adobe.com/document-services/docs/overview/pdf-embed-api/
Is this a known problem for Adobe Reader?
